I get this error message whenever I try to move a line or any other entity to another layer; 'fault 10 Error from 808'I have tried purging the drawing I was in when it first started which didn't work.It now occurs in every drawing I open.Any ideas, please.

I have now sorted this out.Datacad 18 refused to update to the latest versionRemoved my licence on my current versionDownloaded the full version from the Datacad website;https://www.datacad.com/download/index.htmlInstalled and re-activated the licence.No error messages